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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.os;
     18 
     19 import android.annotation.RequiresPermission;
     20 import android.annotation.SystemApi;
     21 import android.annotation.SystemService;
     22 import android.annotation.TestApi;
     23 import android.content.Context;
     24 import android.util.Slog;
     25 
     26 /**
     27  * Class to take an incident report.
     28  *
     29  * @hide
     30  */
     31 @SystemApi
     32 @TestApi
     33 @SystemService(Context.INCIDENT_SERVICE)
     34 public class IncidentManager {
     35     private static final String TAG = "IncidentManager";
     36 
     37     private final Context mContext;
     38 
     39     private IIncidentManager mService;
     40 
     41     /**
     42      * @hide
     43      */
     44     public IncidentManager(Context context) {
     45         mContext = context;
     46     }
     47 
     48     /**
     49      * Take an incident report and put it in dropbox.
     50      */
     51     @RequiresPermission(allOf = {
     52             android.Manifest.permission.DUMP,
     53             android.Manifest.permission.PACKAGE_USAGE_STATS
     54     })
     55     public void reportIncident(IncidentReportArgs args) {
     56         reportIncidentInternal(args);
     57     }
     58 
     59     private class IncidentdDeathRecipient implements IBinder.DeathRecipient {
     60         @Override
     61         public void binderDied() {
     62             synchronized (this) {
     63                 mService = null;
     64             }
     65         }
     66     }
     67 
     68     private void reportIncidentInternal(IncidentReportArgs args) {
     69         try {
     70             final IIncidentManager service = getIIncidentManagerLocked();
     71             if (service == null) {
     72                 Slog.e(TAG, "reportIncident can't find incident binder service");
     73                 return;
     74             }
     75             service.reportIncident(args);
     76         } catch (RemoteException ex) {
     77             Slog.e(TAG, "reportIncident failed", ex);
     78         }
     79     }
     80 
     81     private IIncidentManager getIIncidentManagerLocked() throws RemoteException {
     82         if (mService != null) {
     83             return mService;
     84         }
     85 
     86         synchronized (this) {
     87             if (mService != null) {
     88                 return mService;
     89             }
     90             mService = IIncidentManager.Stub.asInterface(
     91                 ServiceManager.getService(Context.INCIDENT_SERVICE));
     92             if (mService != null) {
     93                 mService.asBinder().linkToDeath(new IncidentdDeathRecipient(), 0);
     94             }
     95             return mService;
     96         }
     97     }
     98 
     99 }
    100 
    101